dannyhertz/mcp-server

Simple MCP Server

A Python-based Model Context Protocol (MCP) server that demonstrates tools, resources, and prompts.

Features

• Tools: Math calculations, time retrieval, echo messages
• Resources: Server config, sample data access
• Prompts: Greeting and analysis prompt templates

Local Setup

1. Install dependencies:

pip install -r requirements.txt

2. Run the server:

python server.py

3. Test with MCP Inspector:

pip install mcp
mcp dev server.py

Deploying to Render

1. Create a new Web Service on Render
2. Connect your GitHub repository
3. Set the following:
   • Build Command: pip install -r requirements.txt
   • Start Command: python server.py
   • Environment: Python 3

Using with Claude Desktop (Remote)

After deploying to Render, add to your Claude Desktop config:

{
  "mcpServers": {
    "simple-server": {
      "uri": "https://your-app-name.onrender.com"
    }
  }
}

Available Tools

• calculate: Perform math operations (add, subtract, multiply, divide)
• get_time: Get current time
• echo: Echo back messages

Available Resources

• config://server: Get server configuration
• data://sample/{item_id}: Get sample data by ID (1, 2, or 3)
• image://sample/chart: PNG image of a sine wave chart
• csv://sample/data: Sample sales data in CSV format

Note: Resources are defined but may have issues with FastMCP v2.8.0. The image resource returns bytes and CSV returns text with proper MIME types set.